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12290733 = 3271343349
BaseRepresentation
bin101110111000…
…101010101101
3212010102201100
4232320222231
511121300413
61115233313
7206320020
oct56705255
925112640
1012290733
116a35234
124148839
132714430
1418bd1b7
15112ba73
hexbb8aad

12290733 has 48 divisors (see below), whose sum is σ = 22422400. Its totient is φ = 6314112.

The previous prime is 12290713. The next prime is 12290737. The reversal of 12290733 is 33709221.

It is not a de Polignac number, because 12290733 - 26 = 12290669 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12290697 and 12290706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12290737) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35043 + ... + 35391.

Almost surely, 212290733 is an apocalyptic number.

12290733 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12290733 is a deficient number, since it is larger than the sum of its proper divisors (10131667).

12290733 is a wasteful number, since it uses less digits than its factorization.

12290733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 12290733 is about 3505.8141707740. The cubic root of 12290733 is about 230.7770379154. Note that the first 3 decimals are identical.

Adding to 12290733 its reverse (33709221), we get a palindrome (45999954).

The spelling of 12290733 in words is "twelve million, two hundred ninety thousand, seven hundred thirty-three".

Divisors: 1 3 7 9 13 21 39 43 63 91 117 129 273 301 349 387 559 819 903 1047 1677 2443 2709 3141 3913 4537 5031 7329 11739 13611 15007 21987 31759 35217 40833 45021 95277 105049 135063 195091 285831 315147 585273 945441 1365637 1755819 4096911 12290733